Boeser Sheet Metal - 48 x 12 x 8 In. Cross Broken Trunk Duct Breadcrumb Home / Products / Parts / Installation Products / Sheet Metal Ductwork and Fittings / Cross Broke Rectangular Duct Loading... Customer Part Number: TD481208-B Brand: Boeser Sheet Metal Length (In.): 48 Shape: Rectangular Size (In.): 48 x 12 x 8